PRESS RELEASE 3 October 2013 Micro Analog Systems releases high resolution Low Power Piezo Resistive Sensor Signal Interface IC Targeted for MEMS based pressure sensor modules Helsinki, Finland – 3 October 2013 - Micro Analog Systems Oy today announced MAS6503, a 24-bit Piezo Resistive Sensor Signal Interface IC primarily intended for MEMS based pressure sensor modules. The device uses a ratiometric AD-converter principle employing a delta-sigma (∆Σ) conversion technique, giving very good noise performance. Its current consumption is extremely low (18.3 µA, one pressure conversion in a second at maximum resolution and including sensor bridge current) and it can operate at low supply voltage from 1.8 V to 3.6 V which makes it an ideal solution for interfacing a piezoresistive sensor in power consumption critical portable applications. The effective number of bits (ENOB) of the ADC is 17.4 bits. The over sampling ratio (OSR) of the ∆Σ-converter has five values to choose from for further optimization between conversion accuracy, speed and current consumption. MAS6503 also features supply voltage monitoring mode which is especially useful in battery operated systems. The external sensor bridge can be used to sense not only pressure but also temperature, using the built-in sensor sampling switches. The MAS6503 communicates via a standard 2-wire I2C serial bus interface. Micro Analog Systems Oy Kutomotie 16 FI-00380 Helsinki Finland [email protected] www.mas-oy.com PRESS RELEASE 3 October 2013 FEATURES • • • • • • • • • • • • • • Low Standby Current Consumption 10 nA Typ Very Low Supply Current: 0.9 µA…18.3 µA Typ Supply Voltage: 1.8 V…3.6 V Ratiometric ∆Σ Conversion Selectable Input Signal Ranges (VDD=2.7V): 373, 253, 172 and 115 mVPP Selectable Optional Offsets (VDD=2.7V): ±126, ±86, ±57 and ±40 mV Selectable Sensor Resistance Values 2, 2.5, 3, 3.5, 4, 4.5, 5 and 10 kΩ Over Sampling Ratio: 4096, 2048, 1024, 512 and 256 Internal System Clock Signal 250 kHz Conversion Times 1.41 ms…16.77 ms Typ 2-Wire Serial Data Interface (I2C Bus) 256 Bit EEPROM Memory Good Noise Performance thanks to the ∆Σ Architecture VDD monitoring mode MAS6503 is available in a QFN-16 4x4x0.75 package as well as tested wafer or die in waffle pack. For further information and samples please contact Micro Analog Systems Oy. About Micro Analog Systems Founded in 1984, Micro Analog Systems Oy is a privately owned fabless semiconductor house located in Helsinki, Finland. MAS supplies Application Specific Standard Parts and ASICs for worldwide customer base. MAS current product portfolio consists of time signal receiver ICs, crystal oscillator ICs and AD converters for sensor applications as well as of other high performance analog ICs. For More Information Company Contact: Juha Majakulma Director +358 50 331 5638 [email protected] Micro Analog Systems Oy Kutomotie 16 FI-00380 Helsinki Finland [email protected] www.mas-oy.com